Bronze is a metal alloy composed of copper and tin. It is uniform in composition, but the percentage of each metal may very between samples.  Bronze can best be classified as:

How many oxygen atoms are there in 2.74 g of Al2(SO4)3?

A compound that is composed entirely of carbon, hydrogen, and oxygen contains 70.6% C, 5.9% H, and 23.5% O by mass. The molecular weight of the compound is 136 amu. What is the molecular formula?

How many protons, neutrons, and electrons are there in one ion of  77Se2- ?

Which of the following compounds exhibits pure (nonpolar) covalent bonding?

The shortest player in NBA history, Muggsy Bogues, stood 5 feet, 3 inches tall.  How many carbon atoms would you need to stack on top of each other in order to reach this height? (The diameter of a carbon atom is 67 pm, 1 ft = 12 in, 1 in = 0.0254 m).

What is the likely chemical formula of the compound formed between zinc and phosphorus?

What is the mass percentage of C in the compound, CH4?

What is proper syntax to find the probability that a randomly selected exam will require more than 15 minutes to grade?

Which of the following is an intensive (bulk) property of matter?